23033222290 has 32 divisors (see below), whose sum is σ = 44659545840. Its totient is φ = 8502568704.

The previous prime is 23033222263. The next prime is 23033222291. The reversal of 23033222290 is 9222233032.

It is a Cunningham number, because it is equal to 151767²+1.

It can be written as a sum of positive squares in 8 ways, for example, as 3407173641 + 19626048649 = 58371^2 + 140093^2 .

It is not an unprimeable number, because it can be changed into a prime (23033222291) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 604072 + ... + 641068.

Almost surely, 2^23033222290 is an apocalyptic number.

23033222290 is a deficient number, since it is larger than the sum of its proper divisors (21626323550).

23033222290 is a wasteful number, since it uses less digits than its factorization.

23033222290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41806.

The product of its (nonzero) digits is 7776, while the sum is 28.

The spelling of 23033222290 in words is "twenty-three billion, thirty-three million, two hundred twenty-two thousand, two hundred ninety".